Home / 1,172,444,729.65-1,618,001,839.80-636,618,976.83

Finding the Fourth Proportional to 1,172,444,729.65, 1,618,001,839.80 and 636,618,976.83

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Solution

The fourth proportional to 1,172,444,729.65, 1,618,001,839.80 and 636,618,976.83 is: 878,549,452.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172,444,729.65 : 1,618,001,839.80 = 636,618,976.83 : x
  2. Step 2: Convert to fraction form
    1,172,444,729.65/1,618,001,839.80 = 636,618,976.83/x
  3. Step 3: Cross multiply
    1,172,444,729.65x = 1,618,001,839.80 × 636,618,976.83
  4. Step 4: Simplify right side
    1,172,444,729.65x = 1,030,050,675,762,533,632
  5. Step 5: Solve for x
    x = 1,030,050,675,762,533,632/1,172,444,729.65
  6. Step 6: Final answer
    x = 878,549,452.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.